Intangible Assets and Goodwill (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period			$ 7,217
Impairments, beginning of period			(1,197)
Net goodwill, beginning of period			6,020
Goodwill impairment charge	$ 0	$ 0	0
Other adjustments			122
Goodwill, end of period	7,339		7,339
Impairments, end of period	(1,197)		(1,197)
Net goodwill, end of period	6,142		6,142
Construction Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period			296
Impairments, beginning of period			(22)
Net goodwill, beginning of period			274
Other adjustments			8
Goodwill, end of period	304		304
Impairments, end of period	(22)		(22)
Net goodwill, end of period	282		282
Resource Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period			4,110
Impairments, beginning of period			(1,175)
Net goodwill, beginning of period			2,935
Other adjustments			78
Goodwill, end of period	4,188		4,188
Impairments, end of period	(1,175)		(1,175)
Net goodwill, end of period	3,013		3,013
Energy & Transportation
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period			2,756
Other adjustments			35
Goodwill, end of period	2,791		2,791
All Other
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period			55
Other adjustments			1
Goodwill, end of period	$ 56		$ 56